Educational Background:
PhD Engineering and Technology (Civil Engineering) Thammasat University, Thailand, 2024
Doctor of Philosophy, Field Engineering for the Environment, Hokkaido University, Japan, 2024
MS Environmental Engineering, University of the Philippines Diliman, 2014
BS Civil Engineering, cum laude, University of the Philippines Diliman, 2010

Service Activities:
Director, Office of Field Activities Diliman, Office of the Vice Chancellor for Academic Affairs, May 2016 – Feb 2018 & Jan 2025 – present
Resource speaker in various seminars, conferences, and training programs by various academic and professional institutions
Committee member and/or chair in various committees of the Institute, College, and the University.
Technical consultant and resource person in various private and government endeavors

Professional Qualifications

Current Membership in Professional Organizations:
Lifetime Member & Specialist, Philippine Institute of Civil Engineers Inc. (PICE)
Member, American Concrete Institute (ACI)
Vice President, American Concrete Institute Philippines Chapter

Professional Qualifications and Certifications:
Registered Civil Engineer, Professional Regulation Commission (2010)
Specialist, Environmental and Energy Engineering, Philippine Institute of Civil Engineers
American Concrete Institute (ACI, USA) Certified/Examiner:
Concrete Field Testing Technician Grade I
Aggregate Testing Technician
Concrete Strength Testing Technician
Concrete Laboratory Testing Technician
Concrete Flatwork Associate
Cement Physical Tester
Concrete Transportation Construction Inspector

Recent Publications

h-index (Scopus and Google Scholar): 6
Scopus Profile: https://www.scopus.com/authid/detail.uri?authorId=57215038332
Google Scholar: https://scholar.google.com/citations?user=ChI4Q84AAAAJ&hl=en

Book Chapter (1)
Structural Capacity Assessment of Buildings in UP Diliman Against Earthquake Hazards. Book: Sakuna’y Darating, Saklolo’y Tayo Rin: Disaster Risk Reduction Handbook for Academic Institution. M Zarco, J Hernandez, OM Antonio, FJ Germar, LRE Tan, NB Diola, C Orozco and L Torio. University of the Philippines Press, 2018 .

Refereed/indexed articles (14)
Orozco, C., Tangtermsirikul, S., Sugiyama, T., & Babel, S. (2024). Unraveling the environmental and economic impacts of fly ash utilization on mass concrete considering industry practices. Journal of Materials Cycle and Waste Management, 26, 1403-1417. https://doi.org/10.1007/s10163-024-01893-y (Springer, Impact Factor = 2.7, Web of Science/Scopus)

Orozco, C., Babel, S., Tangtermsirikul, S., & Sugiyama, T. (2024). Comparison of environmental impacts of fly ash and slag as cement replacement materials for mass concrete and the impact of transportation. Sustainable Materials and Technologies, 39, e00796 https://doi.org/10.1016/J.SUSMAT.2023.E00796 (Elsevier, Impact Factor = 8.6, Web of Science/Scopus)

Orozco, C. R., Tangtermsirikul, S., Sugiyama, T., & Babel, S. (2023). Comparative environmental assessment of low and high CaO fly ash in mass concrete mixtures for enhanced sustainability : Impact of fly ash type and transportation. Environmental Research, 234, 116579. https://doi.org/10.1016/j.envres.2023.116579 (Elsevier, Impact Factor = 7.7, Web of Science/Scopus)

Orozco, C., Tangtermsirikul, S., Sugiyama, T., & Babel, S. (2023). Examining the endpoint impacts, challenges, and opportunities of fly ash utilization for sustainable concrete construction. Scientific Reports 2023 13:1, 13(1), 1–13. https://doi.org/10.1038/s41598-023-45632-z (Springer Nature, Impact Factor = , Web of Science/Scopus)

Orozco, C. R., Castro, K. D. L. T., & De Boda, M. M. T. (2023). Valorization of waste mill tailings from small-scale mining through geopolymerization: strength, durability, and heavy metal leaching potential. Journal of Soils and Sediments. https://doi.org/10.1007/s11368-023-03475-1 (Springer, Impact Factor = 2.8, Web of Science/Scopus)

Orozco, C. R., Babel, S., Tangtermsirikul, S., & Sugiyama, T. (2023). Understanding the environmental, economic, and social impact of fly ash utilization on early-age high-strength mass concrete using life cycle analysis. Materials Today: Proceedings. https://doi.org/10.1016/j.matpr.2023.03.141 (Elsevier, Scopus)

Orozco, C., Babel, S., & Tangtermsirikul, S. (2023). Role of waste materials to a sustainable concrete construction in the Philippines. AIP Conference Proceedings, 2785(1). https://doi.org/10.1063/5.0147969 (Scopus)
Orozco, C. R., & Urbino, I. J. A. (2022). Self-Healing of Cracks in Concrete using Bacillus cibi with Different Encapsulation Techniques. Journal of Engineering and Technological Sciences, 54(3), 1–12. https://doi.org/10.5614/j.eng.technol.sci.2022.54.3.5 (Scopus)

Orozco, C., & Madriaga, D. (2021). Assessment of Green Roofs in the Philippines using Sustainability Indicators and Cost-Benefit Analysis. International Journal of Environmental Studies. https://doi.org/10.1080/00207233.2021.1957623 (Taylor and Francis, Scopus)

Macasieb, R. Q., Orozco, C. R.., & Resurreccion, A. C. . (2021). Application of Coupled HEC-HMS and US EPA WASP for Transport Modelling of Mercury In The Mining-Impacted Ambalanga River. ASEAN Engineering Journal, 11(3), 158-176. https://doi.org/10.11113/aej.v11.17052 (Scopus)

Corpuz, M. P. L. J., Rosei Monzon, M. T., Orozco, C. R., & Germar, F. J. (2021). Effects and Optimization of Aggregate Shape, Size, and Paste Volume Ratio of Pervious Concrete Mixtures. Philippine Engineering Journal, 42(2), 25–40. https://www.journals.upd.edu.ph/index.php/pej/article/view/8495

R Macasieb, C Orozco and A Resurreccion (2021). “Heavy metal contamination assessment and source apportionment analysis using multivariate methods in surface sediments of mining-impacted rivers in Benguet”. International Journal of Environmental Studies. https://doi.org/10.1080/00207233.2020.1802953 Published 5 Aug 2020. Taylor and Francis. (Scopus)

MB Diola and C Orozco. “Improved Removal of Copper Ions From Aqueous Solution Using NaOH-Pretreated Coco Peat”. Special Issue of ASEAN Engineering Journal Part C Volume 4, Number 1. (2015) pp 93-103. https://doi.org/10.11113/aej.v4.15437

C Orozco and SD Maningas. “Industry Perception on the Benefits of Construction Waste Management Strategies in the Philippines.” Philippine Engineering Journal Volume 35, Number 2 (2014) pp 19-28. Print